#include <iostream>
using namespace std;

int main() {
    int var ;
    int *ptr;
    int **pptr;

    var = 3000;

    ptr = &var;

    pptr = &ptr;

    cout << "var 值为：" << var << endl;

    cout << "*ptr 值为：" << *ptr << endl;

    cout << "**pptr 值为：" << **pptr << endl;
}